GLM 5.3 Flash vs Summarize: cost comparison
Prices updated 2026-11-11 · computed from live provider data
Short answer: Summarize is cheaper on a
3:1 input/output blend — $0.030 per million tokens versus
$0.050, a 39% difference.
GLM 5.3 Flash offers the larger context window at 1,048,576 tokens, against 1,000,000 for Summarize.
Head to head
| GLM 5.3 Flash | Summarize | |
|---|---|---|
| Input, per 1M tokens | $0.040 | $0.040 |
| Output, per 1M tokens | $0.078 | Free |
| Blended 3:1, per 1M | $0.050 | $0.030 |
| Context window | 1,048,576 | 1,000,000 |
| Vendor | z-ai | scaledown |
Monthly cost at real volumes
| Workload (input / output) | GLM 5.3 Flash | Summarize |
|---|---|---|
| 1M in / 250K out | $0.059 | $0.040 |
| 10M in / 2.5M out | $0.595 | $0.400 |
| 100M in / 25M out | $5.95 | $4.00 |
Which should you pick?
Pick GLM 5.3 Flash when you need the longer context window (1,048,576 vs 1,000,000 tokens). Pick Summarize when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.